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Titolo:
Application of the thermal wave resonator cavity sensor to the characterization of automotive fuels: motor octane number (MON)
Autore:
Cardoso, SL; da Silva, MG; Lima, JAP; Sthel, MS; Marin, E; Vargas, H;
Indirizzi:
Univ Estadual Norte Fluminense, Ctr Ciencia & Technol, BR-28015620 Campos Goytacazes, RJ, Brazil Univ Estadual Norte Fluminense Campos Goytacazes RJBrazil BR-28015620 BC Univ La Habana, Fac Fis, La Habana, Cuba Univ La Habana La Habana CubaUniv La Habana, Fac Fis, La Habana, Cuba
Titolo Testata:
ANALYTICAL SCIENCES
, volume: 17, anno: 2001,
pagine: S479 - S481
SICI:
0910-6340(2001)17:<S479:AOTTWR>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
6
Recensione:
Indirizzi per estratti:
Indirizzo: Cardoso, SL Univ Estadual Norte Fluminense, Ctr Ciencia & Technol, Av Alberto Lamego 2000, BR-28015620 Campos Goytacazes, RJ, Brazil Univ Estadual Norte Fluminense Av Alberto Lamego 2000 Campos Goytacazes RJ Brazil BR-28015620 BC
Citazione:
S.L. Cardoso et al., "Application of the thermal wave resonator cavity sensor to the characterization of automotive fuels: motor octane number (MON)", ANAL SCI, 17, 2001, pp. S479-S481

Abstract

The octane quality of a gasoline is its ability to resist detonation, a form of abnormal combustion. One of the parameters used to control the quality of automotive fuels is the determination of its Motor Octane Number (MON), normally using the ASTM Motor Method. Two primary reference fuels, isooctane (2,2,4 trimethyl pentane) and n-heptane were arbitrarily chosen to calibrate the method and, again arbitrarily, assigned octane numbers of 100 andzero, respectively. Using a thermal wave resonator cavity sensor, the thermal diffusivity of hydrocarbon vapours in air of different % v/v liquid mixtures of iso-octane/n-heptane and iso-octane/n-hexane were determined. Mixtures of iso-octane/n-hexane presented larger variation of thermal diffusivity as function of concentration than mixtures of iso-octane/n-heptane arbitrarily used in the calibration of the Motor Method for MON determinations. The values of thermal diffusivity for mixtures of iso-octane/hexane at several %v/v were correlated to the values of MON obtained for these mixtures using the conventional Motor Method. The results indicate the possibility ofusing photothermal techniques, specially the thermal resonator cavity sensor for characterisation and quality control of commercial fuels.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 06:17:01